Arizona Chemical Company, LLC

Roland P Scharrer

Erwin R Ruckel

Robert W Schluenz

Martin Epstein

Kerry L Thompson

William J Arter

Josie M Rosen

Richard H Kramss

A process for preparing a terpene-phenol resin with a softening point in the range of from about 80.degree. C. to about 110.degree. C. The method comprises preparing a reaction mixture including a terpene, phenol and a complex of boron trifluoride. The boron trifluoride complex is selected from the group consisting of a ether complex of boron trifluoride, wherein the ether has an molecular weight in the range of from about 46 to about 140, and an organic acid complex of boron trifluoride, wherein the organic acid has a molecular weight in the range of from about 46 to about 300. The reaction mixture is maintained at a temperature in the range of from about 50.degree. C. to about 90.degree. C. for a period of time sufficient to produce the .alpha.-pinene-phenol resin which is then recovered from the reaction mixture. The terpene may be selected from the group consisting of .alpha.-pinene, .beta.-pinene, .delta.-3-carene, dipentene, limonene and mixtures of those terpenes.

Low softening point terpene-phenol resins

A method for the preparation of an adhesive with an improved high temperature shear strength is disclosed. The method comprises the steps of blending a styrene homopolymer with a tackifier resin to form a resin blend and combining the resin blend with an elastomer. An adhesive with improved high temperature shear strength is also disclosed.

High shear tackifier resins

Glycerol esters of modified rosin are useful tackifiers in rubber adhesive compositions. Esters made with rosin modified by reducing the abietic acid concentration to 5% or less, will retain tackifying properties for longer periods in storage before use. The esters are prepared by simultaneously disproportionating and esterifying unmodified rosin with glycerol in the presence of p-t-amyl phenol and phosphoric acid, for example.

Method for making oxidation-stable, light-colored glycerol ester of

There are provided oxygen stable rosin-primary polyhydric alcohol esters and a process for esterifying a rosin with a primary polyhydric alcohol in the presence of catalytic amounts of an arylsulfonic acid added either simultaneously or subsequent to the initial rosin-polyhydric alcohol reaction to complete esterification and to obtain a rosin ester having markedly improved oxidation stability and good color.

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Pelham, NY, United States of America

Roland P Scharrer